How does a 203 transfer case work?
The 203 is a chain driven full time 4 wheel drive t-case. Trucks manufactured with the 203 came stock with always locked hubs. The shift pattern is forward 4 lo lock, 4 lo, N, 4 hi, 4 hi lock closest to seat. In 4 hi,lo the t-case works like an open diff sending power to the least resistance.
What fluid goes in a 203 transfer case?
10w30 or 40 is the correct oil. The 203 depends on the chain “splashing” fluid into the tail housing. The gear oil is too thick for this and tranny fluid is too thin too “stick”.
How heavy is a NP203 transfer case?
New Process NP203 Specs
|New Process Gear
|2.00 : 1
|10w-30 motor oil
|160 – 170 lbs dry
|Transfer case ID tag located on front of case above 4WD output shaft
How do you identify NP203?
The NP203 is identified by several features: 1. The transfer case is made up of 4 sections bolted together, a range box (the gear reduction we use for the Doubler kit), the chain case which houses the chain drive to the front driveshaft output, the differential housing, and the output housing.
How much does an np203 transfer case weigh?
How much does a 203 205 doubler weight?
Measuring 22” long, 19” wide, 15” high and weighing in at a humongous 165 lbs it is one big beast. The following diagram illustrates an exploded view of the NP203, with the low-range box components used for a Doubler™ outlined in red. Other features of the NP203 are: 2:1 low-range gear set (1.96:1) and 1:1 high-range.
How do you tell the difference between NP203 and NP205?
NP 205’s are a part time t-case while the NP 203 is a fulltime case. The easiest way to tell if you dont know what your looking for is to crawl under the right side of the truck and look on the t-case between the input from the tranny and the output to the front driveshaft.
What is the difference between a New Process 203 and NP203?
The New Process 203 was a rare option in ’70’s Ford trucks. The New Process 203 came in all full size ’75-’79 Dodge trucks The NP203 were originally a full time 4WD case, meaning all 4 tires receive power at all times.
Can I use an NP203 transmission in a 205 doubler?
It is common to adapt NP203’s to transmissions that didn’t originally have them for use in our 203/205 Doubler systems. Below is a break down of the parts on a NP203:
What kind of case does a GM NP203 have?
The New Process 203 was a common option in ’73-’79 GM trucks. The New Process 203 was a rare option in ’70’s Ford trucks. The NP203 were originally a full time 4WD case, meaning all 4 tires receive power at all times.
Is the NP203 4 wheel drive or AWD?
The NP203 were originally a full time 4WD case, meaning all 4 tires receive power at all times. This was made possible through use of a differential in the back of the 203 that let the front and rear driveshafts turn at different speeds as just as a diff in an axle lets each axle shaft turn at a different speed.